The Secret Passages of Palazzo Vecchio reopen: exclusive environments are once again accessible with an update of the anti-Covid protocols. The narrow stone staircase commissioned by Gualtieri di Brienne and carved into the thickness of the medieval wall, the Studiolo of Francesco I, a wonderful treasure chest of the refined collection of Prince Medici, the writing desk of his father Cosimo I, accessible only through passages hidden behind paintings, the vast space above the ceiling of the Salone dei Cinquecento, where an imposing system of trusses stands out to support both the painted ‘stage’ and the roof covering.